drivers/net/wireless/intel/iwlwifi/iwl-drv.c

   1 /******************************************************************************
   2  *
   3  * This file is provided under a dual BSD/GPLv2 license.  When using or
   4  * redistributing this file, you may do so under either license.
   5  *
   6  * GPL LICENSE SUMMARY
   7  *
   8  * Copyright(c) 2007 - 2014 Intel Corporation. All rights reserved.
   9  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  10  * Copyright(c) 2016        Intel Deutschland GmbH
  11  *
  12  * This program is free software; you can redistribute it and/or modify
  13  * it under the terms of version 2 of the GNU General Public License as
  14  * published by the Free Software Foundation.
  15  *
  16  * This program is distributed in the hope that it will be useful, but
  17  * WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19  * General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
  24  * USA
  25  *
  26  * The full GNU General Public License is included in this distribution
  27  * in the file called COPYING.
  28  *
  29  * Contact Information:
  30  *  Intel Linux Wireless <linuxwifi@intel.com>
  31  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  32  *
  33  * BSD LICENSE
  34  *
  35  * Copyright(c) 2005 - 2014 Intel Corporation. All rights reserved.
  36  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  37  * Copyright(c) 2016        Intel Deutschland GmbH
  38  * All rights reserved.
  39  *
  40  * Redistribution and use in source and binary forms, with or without
  41  * modification, are permitted provided that the following conditions
  42  * are met:
  43  *
  44  *  * Redistributions of source code must retain the above copyright
  45  *    notice, this list of conditions and the following disclaimer.
  46  *  * Redistributions in binary form must reproduce the above copyright
  47  *    notice, this list of conditions and the following disclaimer in
  48  *    the documentation and/or other materials provided with the
  49  *    distribution.
  50  *  * Neither the name Intel Corporation nor the names of its
  51  *    contributors may be used to endorse or promote products derived
  52  *    from this software without specific prior written permission.
  53  *
  54  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  55  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  56  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  57  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  58  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  59  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  60  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  61  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  62  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  63  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  64  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  65  *
  66  *****************************************************************************/
  67 #include <linux/completion.h>
  68 #include <linux/dma-mapping.h>
  69 #include <linux/firmware.h>
  70 #include <linux/module.h>
  71 #include <linux/vmalloc.h>
  72
  73 #include "iwl-drv.h"
  74 #include "iwl-csr.h"
  75 #include "iwl-debug.h"
  76 #include "iwl-trans.h"
  77 #include "iwl-op-mode.h"
  78 #include "iwl-agn-hw.h"
  79 #include "iwl-fw.h"
  80 #include "iwl-config.h"
  81 #include "iwl-modparams.h"
  82
  83 /******************************************************************************
  84  *
  85  * module boiler plate
  86  *
  87  ******************************************************************************/
  88
  89 #define DRV_DESCRIPTION "Intel(R) Wireless WiFi driver for Linux"
  90 MODULE_DESCRIPTION(DRV_DESCRIPTION);
  91 MODULE_AUTHOR(DRV_COPYRIGHT " " DRV_AUTHOR);
  92 MODULE_LICENSE("GPL");
  93
  94 #ifdef CONFIG_IWLWIFI_DEBUGFS
  95 static struct dentry *iwl_dbgfs_root;
  96 #endif
  97
  98 /**
  99  * struct iwl_drv - drv common data
 100  * @list: list of drv structures using this opmode
 101  * @fw: the iwl_fw structure
 102  * @op_mode: the running op_mode
 103  * @trans: transport layer
 104  * @dev: for debug prints only
 105  * @cfg: configuration struct
 106  * @fw_index: firmware revision to try loading
 107  * @firmware_name: composite filename of ucode file to load
 108  * @request_firmware_complete: the firmware has been obtained from user space
 109  */
 110 struct iwl_drv {
 111         struct list_head list;
 112         struct iwl_fw fw;
 113
 114         struct iwl_op_mode *op_mode;
 115         struct iwl_trans *trans;
 116         struct device *dev;
 117         const struct iwl_cfg *cfg;
 118
 119         int fw_index;                   /* firmware we're trying to load */
 120         char firmware_name[32];         /* name of firmware file to load */
 121
 122         struct completion request_firmware_complete;
 123
 124 #ifdef CONFIG_IWLWIFI_DEBUGFS
 125         struct dentry *dbgfs_drv;
 126         struct dentry *dbgfs_trans;
 127         struct dentry *dbgfs_op_mode;
 128 #endif
 129 };
 130
 131 enum {
 132         DVM_OP_MODE =   0,
 133         MVM_OP_MODE =   1,
 134 };
 135
 136 /* Protects the table contents, i.e. the ops pointer & drv list */
 137 static struct mutex iwlwifi_opmode_table_mtx;
 138 static struct iwlwifi_opmode_table {
 139         const char *name;                       /* name: iwldvm, iwlmvm, etc */
 140         const struct iwl_op_mode_ops *ops;      /* pointer to op_mode ops */
 141         struct list_head drv;           /* list of devices using this op_mode */
 142 } iwlwifi_opmode_table[] = {            /* ops set when driver is initialized */
 143         [DVM_OP_MODE] = { .name = "iwldvm", .ops = NULL },
 144         [MVM_OP_MODE] = { .name = "iwlmvm", .ops = NULL },
 145 };
 146
 147 #define IWL_DEFAULT_SCAN_CHANNELS 40
 148
 149 /*
 150  * struct fw_sec: Just for the image parsing process.
 151  * For the fw storage we are using struct fw_desc.
 152  */
 153 struct fw_sec {
 154         const void *data;               /* the sec data */
 155         size_t size;                    /* section size */
 156         u32 offset;                     /* offset of writing in the device */
 157 };
 158
 159 static void iwl_free_fw_desc(struct iwl_drv *drv, struct fw_desc *desc)
 160 {
 161         vfree(desc->data);
 162         desc->data = NULL;
 163         desc->len = 0;
 164 }
 165
 166 static void iwl_free_fw_img(struct iwl_drv *drv, struct fw_img *img)
 167 {
 168         int i;
 169         for (i = 0; i < IWL_UCODE_SECTION_MAX; i++)
 170                 iwl_free_fw_desc(drv, &img->sec[i]);
 171 }
 172
 173 static void iwl_dealloc_ucode(struct iwl_drv *drv)
 174 {
 175         int i;
 176
 177         kfree(drv->fw.dbg_dest_tlv);
 178         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++)
 179                 kfree(drv->fw.dbg_conf_tlv[i]);
 180         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++)
 181                 kfree(drv->fw.dbg_trigger_tlv[i]);
 182         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_mem_tlv); i++)
 183                 kfree(drv->fw.dbg_mem_tlv[i]);
 184
 185         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
 186                 iwl_free_fw_img(drv, drv->fw.img + i);
 187 }
 188
 189 static int iwl_alloc_fw_desc(struct iwl_drv *drv, struct fw_desc *desc,
 190                              struct fw_sec *sec)
 191 {
 192         void *data;
 193
 194         desc->data = NULL;
 195
 196         if (!sec || !sec->size)
 197                 return -EINVAL;
 198
 199         data = vmalloc(sec->size);
 200         if (!data)
 201                 return -ENOMEM;
 202
 203         desc->len = sec->size;
 204         desc->offset = sec->offset;
 205         memcpy(data, sec->data, desc->len);
 206         desc->data = data;
 207
 208         return 0;
 209 }
 210
 211 static void iwl_req_fw_callback(const struct firmware *ucode_raw,
 212                                 void *context);
 213
 214 #define UCODE_EXPERIMENTAL_INDEX        100
 215 #define UCODE_EXPERIMENTAL_TAG          "exp"
 216
 217 static int iwl_request_firmware(struct iwl_drv *drv, bool first)
 218 {
 219         const char *name_pre = drv->cfg->fw_name_pre;
 220         char tag[8];
 221
 222         if (first) {
 223 #ifdef CONFIG_IWLWIFI_DEBUG_EXPERIMENTAL_UCODE
 224                 drv->fw_index = UCODE_EXPERIMENTAL_INDEX;
 225                 strcpy(tag, UCODE_EXPERIMENTAL_TAG);
 226         } else if (drv->fw_index == UCODE_EXPERIMENTAL_INDEX) {
 227 #endif
 228                 drv->fw_index = drv->cfg->ucode_api_max;
 229                 sprintf(tag, "%d", drv->fw_index);
 230         } else {
 231                 drv->fw_index--;
 232                 sprintf(tag, "%d", drv->fw_index);
 233         }
 234
 235         if (drv->fw_index < drv->cfg->ucode_api_min) {
 236                 IWL_ERR(drv, "no suitable firmware found!\n");
 237                 return -ENOENT;
 238         }
 239
 240         snprintf(drv->firmware_name, sizeof(drv->firmware_name), "%s%s.ucode",
 241                  name_pre, tag);
 242
 243         /*
 244          * Starting 8000B - FW name format has changed. This overwrites the
 245          * previous name and uses the new format.
 246          */
 247         if (drv->trans->cfg->device_family == IWL_DEVICE_FAMILY_8000) {
 248                 char rev_step = 'A' + CSR_HW_REV_STEP(drv->trans->hw_rev);
 249
 250                 if (rev_step != 'A')
 251                         snprintf(drv->firmware_name,
 252                                  sizeof(drv->firmware_name), "%s%c-%s.ucode",
 253                                  name_pre, rev_step, tag);
 254         }
 255
 256         IWL_DEBUG_INFO(drv, "attempting to load firmware %s'%s'\n",
 257                        (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
 258                                 ? "EXPERIMENTAL " : "",
 259                        drv->firmware_name);
 260
 261         return request_firmware_nowait(THIS_MODULE, 1, drv->firmware_name,
 262                                        drv->trans->dev,
 263                                        GFP_KERNEL, drv, iwl_req_fw_callback);
 264 }
 265
 266 struct fw_img_parsing {
 267         struct fw_sec sec[IWL_UCODE_SECTION_MAX];
 268         int sec_counter;
 269 };
 270
 271 /*
 272  * struct fw_sec_parsing: to extract fw section and it's offset from tlv
 273  */
 274 struct fw_sec_parsing {
 275         __le32 offset;
 276         const u8 data[];
 277 } __packed;
 278
 279 /**
 280  * struct iwl_tlv_calib_data - parse the default calib data from TLV
 281  *
 282  * @ucode_type: the uCode to which the following default calib relates.
 283  * @calib: default calibrations.
 284  */
 285 struct iwl_tlv_calib_data {
 286         __le32 ucode_type;
 287         struct iwl_tlv_calib_ctrl calib;
 288 } __packed;
 289
 290 struct iwl_firmware_pieces {
 291         struct fw_img_parsing img[IWL_UCODE_TYPE_MAX];
 292
 293         u32 init_evtlog_ptr, init_evtlog_size, init_errlog_ptr;
 294         u32 inst_evtlog_ptr, inst_evtlog_size, inst_errlog_ptr;
 295
 296         /* FW debug data parsed for driver usage */
 297         struct iwl_fw_dbg_dest_tlv *dbg_dest_tlv;
 298         struct iwl_fw_dbg_conf_tlv *dbg_conf_tlv[FW_DBG_CONF_MAX];
 299         size_t dbg_conf_tlv_len[FW_DBG_CONF_MAX];
 300         struct iwl_fw_dbg_trigger_tlv *dbg_trigger_tlv[FW_DBG_TRIGGER_MAX];
 301         size_t dbg_trigger_tlv_len[FW_DBG_TRIGGER_MAX];
 302         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem_tlv[FW_DBG_MEM_MAX];
 303 };
 304
 305 /*
 306  * These functions are just to extract uCode section data from the pieces
 307  * structure.
 308  */
 309 static struct fw_sec *get_sec(struct iwl_firmware_pieces *pieces,
 310                               enum iwl_ucode_type type,
 311                               int  sec)
 312 {
 313         return &pieces->img[type].sec[sec];
 314 }
 315
 316 static void set_sec_data(struct iwl_firmware_pieces *pieces,
 317                          enum iwl_ucode_type type,
 318                          int sec,
 319                          const void *data)
 320 {
 321         pieces->img[type].sec[sec].data = data;
 322 }
 323
 324 static void set_sec_size(struct iwl_firmware_pieces *pieces,
 325                          enum iwl_ucode_type type,
 326                          int sec,
 327                          size_t size)
 328 {
 329         pieces->img[type].sec[sec].size = size;
 330 }
 331
 332 static size_t get_sec_size(struct iwl_firmware_pieces *pieces,
 333                            enum iwl_ucode_type type,
 334                            int sec)
 335 {
 336         return pieces->img[type].sec[sec].size;
 337 }
 338
 339 static void set_sec_offset(struct iwl_firmware_pieces *pieces,
 340                            enum iwl_ucode_type type,
 341                            int sec,
 342                            u32 offset)
 343 {
 344         pieces->img[type].sec[sec].offset = offset;
 345 }
 346
 347 static int iwl_store_cscheme(struct iwl_fw *fw, const u8 *data, const u32 len)
 348 {
 349         int i, j;
 350         struct iwl_fw_cscheme_list *l = (struct iwl_fw_cscheme_list *)data;
 351         struct iwl_fw_cipher_scheme *fwcs;
 352         struct ieee80211_cipher_scheme *cs;
 353         u32 cipher;
 354
 355         if (len < sizeof(*l) ||
 356             len < sizeof(l->size) + l->size * sizeof(l->cs[0]))
 357                 return -EINVAL;
 358
 359         for (i = 0, j = 0; i < IWL_UCODE_MAX_CS && i < l->size; i++) {
 360                 fwcs = &l->cs[j];
 361                 cipher = le32_to_cpu(fwcs->cipher);
 362
 363                 /* we skip schemes with zero cipher suite selector */
 364                 if (!cipher)
 365                         continue;
 366
 367                 cs = &fw->cs[j++];
 368                 cs->cipher = cipher;
 369                 cs->iftype = BIT(NL80211_IFTYPE_STATION);
 370                 cs->hdr_len = fwcs->hdr_len;
 371                 cs->pn_len = fwcs->pn_len;
 372                 cs->pn_off = fwcs->pn_off;
 373                 cs->key_idx_off = fwcs->key_idx_off;
 374                 cs->key_idx_mask = fwcs->key_idx_mask;
 375                 cs->key_idx_shift = fwcs->key_idx_shift;
 376                 cs->mic_len = fwcs->mic_len;
 377         }
 378
 379         return 0;
 380 }
 381
 382 static void iwl_store_gscan_capa(struct iwl_fw *fw, const u8 *data,
 383                                  const u32 len)
 384 {
 385         struct iwl_fw_gscan_capabilities *fw_capa = (void *)data;
 386         struct iwl_gscan_capabilities *capa = &fw->gscan_capa;
 387
 388         capa->max_scan_cache_size = le32_to_cpu(fw_capa->max_scan_cache_size);
 389         capa->max_scan_buckets = le32_to_cpu(fw_capa->max_scan_buckets);
 390         capa->max_ap_cache_per_scan =
 391                 le32_to_cpu(fw_capa->max_ap_cache_per_scan);
 392         capa->max_rssi_sample_size = le32_to_cpu(fw_capa->max_rssi_sample_size);
 393         capa->max_scan_reporting_threshold =
 394                 le32_to_cpu(fw_capa->max_scan_reporting_threshold);
 395         capa->max_hotlist_aps = le32_to_cpu(fw_capa->max_hotlist_aps);
 396         capa->max_significant_change_aps =
 397                 le32_to_cpu(fw_capa->max_significant_change_aps);
 398         capa->max_bssid_history_entries =
 399                 le32_to_cpu(fw_capa->max_bssid_history_entries);
 400         capa->max_hotlist_ssids = le32_to_cpu(fw_capa->max_hotlist_ssids);
 401         capa->max_number_epno_networks =
 402                 le32_to_cpu(fw_capa->max_number_epno_networks);
 403         capa->max_number_epno_networks_by_ssid =
 404                 le32_to_cpu(fw_capa->max_number_epno_networks_by_ssid);
 405         capa->max_number_of_white_listed_ssid =
 406                 le32_to_cpu(fw_capa->max_number_of_white_listed_ssid);
 407         capa->max_number_of_black_listed_ssid =
 408                 le32_to_cpu(fw_capa->max_number_of_black_listed_ssid);
 409 }
 410
 411 /*
 412  * Gets uCode section from tlv.
 413  */
 414 static int iwl_store_ucode_sec(struct iwl_firmware_pieces *pieces,
 415                                const void *data, enum iwl_ucode_type type,
 416                                int size)
 417 {
 418         struct fw_img_parsing *img;
 419         struct fw_sec *sec;
 420         struct fw_sec_parsing *sec_parse;
 421
 422         if (WARN_ON(!pieces || !data || type >= IWL_UCODE_TYPE_MAX))
 423                 return -1;
 424
 425         sec_parse = (struct fw_sec_parsing *)data;
 426
 427         img = &pieces->img[type];
 428         sec = &img->sec[img->sec_counter];
 429
 430         sec->offset = le32_to_cpu(sec_parse->offset);
 431         sec->data = sec_parse->data;
 432         sec->size = size - sizeof(sec_parse->offset);
 433
 434         ++img->sec_counter;
 435
 436         return 0;
 437 }
 438
 439 static int iwl_set_default_calib(struct iwl_drv *drv, const u8 *data)
 440 {
 441         struct iwl_tlv_calib_data *def_calib =
 442                                         (struct iwl_tlv_calib_data *)data;
 443         u32 ucode_type = le32_to_cpu(def_calib->ucode_type);
 444         if (ucode_type >= IWL_UCODE_TYPE_MAX) {
 445                 IWL_ERR(drv, "Wrong ucode_type %u for default calibration.\n",
 446                         ucode_type);
 447                 return -EINVAL;
 448         }
 449         drv->fw.default_calib[ucode_type].flow_trigger =
 450                 def_calib->calib.flow_trigger;
 451         drv->fw.default_calib[ucode_type].event_trigger =
 452                 def_calib->calib.event_trigger;
 453
 454         return 0;
 455 }
 456
 457 static int iwl_set_ucode_api_flags(struct iwl_drv *drv, const u8 *data,
 458                                    struct iwl_ucode_capabilities *capa)
 459 {
 460         const struct iwl_ucode_api *ucode_api = (void *)data;
 461         u32 api_index = le32_to_cpu(ucode_api->api_index);
 462         u32 api_flags = le32_to_cpu(ucode_api->api_flags);
 463         int i;
 464
 465         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_API, 32)) {
 466                 IWL_ERR(drv,
 467                         "api flags index %d larger than supported by driver\n",
 468                         api_index);
 469                 /* don't return an error so we can load FW that has more bits */
 470                 return 0;
 471         }
 472
 473         for (i = 0; i < 32; i++) {
 474                 if (api_flags & BIT(i))
 475                         __set_bit(i + 32 * api_index, capa->_api);
 476         }
 477
 478         return 0;
 479 }
 480
 481 static int iwl_set_ucode_capabilities(struct iwl_drv *drv, const u8 *data,
 482                                       struct iwl_ucode_capabilities *capa)
 483 {
 484         const struct iwl_ucode_capa *ucode_capa = (void *)data;
 485         u32 api_index = le32_to_cpu(ucode_capa->api_index);
 486         u32 api_flags = le32_to_cpu(ucode_capa->api_capa);
 487         int i;
 488
 489         if (api_index >= DIV_ROUND_UP(NUM_IWL_UCODE_TLV_CAPA, 32)) {
 490                 IWL_ERR(drv,
 491                         "capa flags index %d larger than supported by driver\n",
 492                         api_index);
 493                 /* don't return an error so we can load FW that has more bits */
 494                 return 0;
 495         }
 496
 497         for (i = 0; i < 32; i++) {
 498                 if (api_flags & BIT(i))
 499                         __set_bit(i + 32 * api_index, capa->_capa);
 500         }
 501
 502         return 0;
 503 }
 504
 505 static int iwl_parse_v1_v2_firmware(struct iwl_drv *drv,
 506                                     const struct firmware *ucode_raw,
 507                                     struct iwl_firmware_pieces *pieces)
 508 {
 509         struct iwl_ucode_header *ucode = (void *)ucode_raw->data;
 510         u32 api_ver, hdr_size, build;
 511         char buildstr[25];
 512         const u8 *src;
 513
 514         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 515         api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
 516
 517         switch (api_ver) {
 518         default:
 519                 hdr_size = 28;
 520                 if (ucode_raw->size < hdr_size) {
 521                         IWL_ERR(drv, "File size too small!\n");
 522                         return -EINVAL;
 523                 }
 524                 build = le32_to_cpu(ucode->u.v2.build);
 525                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 526                              le32_to_cpu(ucode->u.v2.inst_size));
 527                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 528                              le32_to_cpu(ucode->u.v2.data_size));
 529                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 530                              le32_to_cpu(ucode->u.v2.init_size));
 531                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 532                              le32_to_cpu(ucode->u.v2.init_data_size));
 533                 src = ucode->u.v2.data;
 534                 break;
 535         case 0:
 536         case 1:
 537         case 2:
 538                 hdr_size = 24;
 539                 if (ucode_raw->size < hdr_size) {
 540                         IWL_ERR(drv, "File size too small!\n");
 541                         return -EINVAL;
 542                 }
 543                 build = 0;
 544                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 545                              le32_to_cpu(ucode->u.v1.inst_size));
 546                 set_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 547                              le32_to_cpu(ucode->u.v1.data_size));
 548                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 549                              le32_to_cpu(ucode->u.v1.init_size));
 550                 set_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 551                              le32_to_cpu(ucode->u.v1.init_data_size));
 552                 src = ucode->u.v1.data;
 553                 break;
 554         }
 555
 556         if (build)
 557                 sprintf(buildstr, " build %u%s", build,
 558                        (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
 559                                 ? " (EXP)" : "");
 560         else
 561                 buildstr[0] = '\0';
 562
 563         snprintf(drv->fw.fw_version,
 564                  sizeof(drv->fw.fw_version),
 565                  "%u.%u.%u.%u%s",
 566                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 567                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 568                  IWL_UCODE_API(drv->fw.ucode_ver),
 569                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 570                  buildstr);
 571
 572         /* Verify size of file vs. image size info in file's header */
 573
 574         if (ucode_raw->size != hdr_size +
 575             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) +
 576             get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) +
 577             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) +
 578             get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA)) {
 579
 580                 IWL_ERR(drv,
 581                         "uCode file size %d does not match expected size\n",
 582                         (int)ucode_raw->size);
 583                 return -EINVAL;
 584         }
 585
 586
 587         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST, src);
 588         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST);
 589         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST,
 590                        IWLAGN_RTC_INST_LOWER_BOUND);
 591         set_sec_data(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA, src);
 592         src += get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA);
 593         set_sec_offset(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA,
 594                        IWLAGN_RTC_DATA_LOWER_BOUND);
 595         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST, src);
 596         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST);
 597         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST,
 598                        IWLAGN_RTC_INST_LOWER_BOUND);
 599         set_sec_data(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA, src);
 600         src += get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA);
 601         set_sec_offset(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA,
 602                        IWLAGN_RTC_DATA_LOWER_BOUND);
 603         return 0;
 604 }
 605
 606 static int iwl_parse_tlv_firmware(struct iwl_drv *drv,
 607                                 const struct firmware *ucode_raw,
 608                                 struct iwl_firmware_pieces *pieces,
 609                                 struct iwl_ucode_capabilities *capa,
 610                                 bool *usniffer_images)
 611 {
 612         struct iwl_tlv_ucode_header *ucode = (void *)ucode_raw->data;
 613         struct iwl_ucode_tlv *tlv;
 614         size_t len = ucode_raw->size;
 615         const u8 *data;
 616         u32 tlv_len;
 617         u32 usniffer_img;
 618         enum iwl_ucode_tlv_type tlv_type;
 619         const u8 *tlv_data;
 620         char buildstr[25];
 621         u32 build, paging_mem_size;
 622         int num_of_cpus;
 623         bool usniffer_req = false;
 624         bool gscan_capa = false;
 625
 626         if (len < sizeof(*ucode)) {
 627                 IWL_ERR(drv, "uCode has invalid length: %zd\n", len);
 628                 return -EINVAL;
 629         }
 630
 631         if (ucode->magic != cpu_to_le32(IWL_TLV_UCODE_MAGIC)) {
 632                 IWL_ERR(drv, "invalid uCode magic: 0X%x\n",
 633                         le32_to_cpu(ucode->magic));
 634                 return -EINVAL;
 635         }
 636
 637         drv->fw.ucode_ver = le32_to_cpu(ucode->ver);
 638         memcpy(drv->fw.human_readable, ucode->human_readable,
 639                sizeof(drv->fw.human_readable));
 640         build = le32_to_cpu(ucode->build);
 641
 642         if (build)
 643                 sprintf(buildstr, " build %u%s", build,
 644                        (drv->fw_index == UCODE_EXPERIMENTAL_INDEX)
 645                                 ? " (EXP)" : "");
 646         else
 647                 buildstr[0] = '\0';
 648
 649         snprintf(drv->fw.fw_version,
 650                  sizeof(drv->fw.fw_version),
 651                  "%u.%u.%u.%u%s",
 652                  IWL_UCODE_MAJOR(drv->fw.ucode_ver),
 653                  IWL_UCODE_MINOR(drv->fw.ucode_ver),
 654                  IWL_UCODE_API(drv->fw.ucode_ver),
 655                  IWL_UCODE_SERIAL(drv->fw.ucode_ver),
 656                  buildstr);
 657
 658         data = ucode->data;
 659
 660         len -= sizeof(*ucode);
 661
 662         while (len >= sizeof(*tlv)) {
 663                 len -= sizeof(*tlv);
 664                 tlv = (void *)data;
 665
 666                 tlv_len = le32_to_cpu(tlv->length);
 667                 tlv_type = le32_to_cpu(tlv->type);
 668                 tlv_data = tlv->data;
 669
 670                 if (len < tlv_len) {
 671                         IWL_ERR(drv, "invalid TLV len: %zd/%u\n",
 672                                 len, tlv_len);
 673                         return -EINVAL;
 674                 }
 675                 len -= ALIGN(tlv_len, 4);
 676                 data += sizeof(*tlv) + ALIGN(tlv_len, 4);
 677
 678                 switch (tlv_type) {
 679                 case IWL_UCODE_TLV_INST:
 680                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 681                                      IWL_UCODE_SECTION_INST, tlv_data);
 682                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 683                                      IWL_UCODE_SECTION_INST, tlv_len);
 684                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 685                                        IWL_UCODE_SECTION_INST,
 686                                        IWLAGN_RTC_INST_LOWER_BOUND);
 687                         break;
 688                 case IWL_UCODE_TLV_DATA:
 689                         set_sec_data(pieces, IWL_UCODE_REGULAR,
 690                                      IWL_UCODE_SECTION_DATA, tlv_data);
 691                         set_sec_size(pieces, IWL_UCODE_REGULAR,
 692                                      IWL_UCODE_SECTION_DATA, tlv_len);
 693                         set_sec_offset(pieces, IWL_UCODE_REGULAR,
 694                                        IWL_UCODE_SECTION_DATA,
 695                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 696                         break;
 697                 case IWL_UCODE_TLV_INIT:
 698                         set_sec_data(pieces, IWL_UCODE_INIT,
 699                                      IWL_UCODE_SECTION_INST, tlv_data);
 700                         set_sec_size(pieces, IWL_UCODE_INIT,
 701                                      IWL_UCODE_SECTION_INST, tlv_len);
 702                         set_sec_offset(pieces, IWL_UCODE_INIT,
 703                                        IWL_UCODE_SECTION_INST,
 704                                        IWLAGN_RTC_INST_LOWER_BOUND);
 705                         break;
 706                 case IWL_UCODE_TLV_INIT_DATA:
 707                         set_sec_data(pieces, IWL_UCODE_INIT,
 708                                      IWL_UCODE_SECTION_DATA, tlv_data);
 709                         set_sec_size(pieces, IWL_UCODE_INIT,
 710                                      IWL_UCODE_SECTION_DATA, tlv_len);
 711                         set_sec_offset(pieces, IWL_UCODE_INIT,
 712                                        IWL_UCODE_SECTION_DATA,
 713                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 714                         break;
 715                 case IWL_UCODE_TLV_BOOT:
 716                         IWL_ERR(drv, "Found unexpected BOOT ucode\n");
 717                         break;
 718                 case IWL_UCODE_TLV_PROBE_MAX_LEN:
 719                         if (tlv_len != sizeof(u32))
 720                                 goto invalid_tlv_len;
 721                         capa->max_probe_length =
 722                                         le32_to_cpup((__le32 *)tlv_data);
 723                         break;
 724                 case IWL_UCODE_TLV_PAN:
 725                         if (tlv_len)
 726                                 goto invalid_tlv_len;
 727                         capa->flags |= IWL_UCODE_TLV_FLAGS_PAN;
 728                         break;
 729                 case IWL_UCODE_TLV_FLAGS:
 730                         /* must be at least one u32 */
 731                         if (tlv_len < sizeof(u32))
 732                                 goto invalid_tlv_len;
 733                         /* and a proper number of u32s */
 734                         if (tlv_len % sizeof(u32))
 735                                 goto invalid_tlv_len;
 736                         /*
 737                          * This driver only reads the first u32 as
 738                          * right now no more features are defined,
 739                          * if that changes then either the driver
 740                          * will not work with the new firmware, or
 741                          * it'll not take advantage of new features.
 742                          */
 743                         capa->flags = le32_to_cpup((__le32 *)tlv_data);
 744                         break;
 745                 case IWL_UCODE_TLV_API_CHANGES_SET:
 746                         if (tlv_len != sizeof(struct iwl_ucode_api))
 747                                 goto invalid_tlv_len;
 748                         if (iwl_set_ucode_api_flags(drv, tlv_data, capa))
 749                                 goto tlv_error;
 750                         break;
 751                 case IWL_UCODE_TLV_ENABLED_CAPABILITIES:
 752                         if (tlv_len != sizeof(struct iwl_ucode_capa))
 753                                 goto invalid_tlv_len;
 754                         if (iwl_set_ucode_capabilities(drv, tlv_data, capa))
 755                                 goto tlv_error;
 756                         break;
 757                 case IWL_UCODE_TLV_INIT_EVTLOG_PTR:
 758                         if (tlv_len != sizeof(u32))
 759                                 goto invalid_tlv_len;
 760                         pieces->init_evtlog_ptr =
 761                                         le32_to_cpup((__le32 *)tlv_data);
 762                         break;
 763                 case IWL_UCODE_TLV_INIT_EVTLOG_SIZE:
 764                         if (tlv_len != sizeof(u32))
 765                                 goto invalid_tlv_len;
 766                         pieces->init_evtlog_size =
 767                                         le32_to_cpup((__le32 *)tlv_data);
 768                         break;
 769                 case IWL_UCODE_TLV_INIT_ERRLOG_PTR:
 770                         if (tlv_len != sizeof(u32))
 771                                 goto invalid_tlv_len;
 772                         pieces->init_errlog_ptr =
 773                                         le32_to_cpup((__le32 *)tlv_data);
 774                         break;
 775                 case IWL_UCODE_TLV_RUNT_EVTLOG_PTR:
 776                         if (tlv_len != sizeof(u32))
 777                                 goto invalid_tlv_len;
 778                         pieces->inst_evtlog_ptr =
 779                                         le32_to_cpup((__le32 *)tlv_data);
 780                         break;
 781                 case IWL_UCODE_TLV_RUNT_EVTLOG_SIZE:
 782                         if (tlv_len != sizeof(u32))
 783                                 goto invalid_tlv_len;
 784                         pieces->inst_evtlog_size =
 785                                         le32_to_cpup((__le32 *)tlv_data);
 786                         break;
 787                 case IWL_UCODE_TLV_RUNT_ERRLOG_PTR:
 788                         if (tlv_len != sizeof(u32))
 789                                 goto invalid_tlv_len;
 790                         pieces->inst_errlog_ptr =
 791                                         le32_to_cpup((__le32 *)tlv_data);
 792                         break;
 793                 case IWL_UCODE_TLV_ENHANCE_SENS_TBL:
 794                         if (tlv_len)
 795                                 goto invalid_tlv_len;
 796                         drv->fw.enhance_sensitivity_table = true;
 797                         break;
 798                 case IWL_UCODE_TLV_WOWLAN_INST:
 799                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 800                                      IWL_UCODE_SECTION_INST, tlv_data);
 801                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 802                                      IWL_UCODE_SECTION_INST, tlv_len);
 803                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 804                                        IWL_UCODE_SECTION_INST,
 805                                        IWLAGN_RTC_INST_LOWER_BOUND);
 806                         break;
 807                 case IWL_UCODE_TLV_WOWLAN_DATA:
 808                         set_sec_data(pieces, IWL_UCODE_WOWLAN,
 809                                      IWL_UCODE_SECTION_DATA, tlv_data);
 810                         set_sec_size(pieces, IWL_UCODE_WOWLAN,
 811                                      IWL_UCODE_SECTION_DATA, tlv_len);
 812                         set_sec_offset(pieces, IWL_UCODE_WOWLAN,
 813                                        IWL_UCODE_SECTION_DATA,
 814                                        IWLAGN_RTC_DATA_LOWER_BOUND);
 815                         break;
 816                 case IWL_UCODE_TLV_PHY_CALIBRATION_SIZE:
 817                         if (tlv_len != sizeof(u32))
 818                                 goto invalid_tlv_len;
 819                         capa->standard_phy_calibration_size =
 820                                         le32_to_cpup((__le32 *)tlv_data);
 821                         break;
 822                  case IWL_UCODE_TLV_SEC_RT:
 823                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 824                                             tlv_len);
 825                         drv->fw.mvm_fw = true;
 826                         break;
 827                 case IWL_UCODE_TLV_SEC_INIT:
 828                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 829                                             tlv_len);
 830                         drv->fw.mvm_fw = true;
 831                         break;
 832                 case IWL_UCODE_TLV_SEC_WOWLAN:
 833                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 834                                             tlv_len);
 835                         drv->fw.mvm_fw = true;
 836                         break;
 837                 case IWL_UCODE_TLV_DEF_CALIB:
 838                         if (tlv_len != sizeof(struct iwl_tlv_calib_data))
 839                                 goto invalid_tlv_len;
 840                         if (iwl_set_default_calib(drv, tlv_data))
 841                                 goto tlv_error;
 842                         break;
 843                 case IWL_UCODE_TLV_PHY_SKU:
 844                         if (tlv_len != sizeof(u32))
 845                                 goto invalid_tlv_len;
 846                         drv->fw.phy_config = le32_to_cpup((__le32 *)tlv_data);
 847                         drv->fw.valid_tx_ant = (drv->fw.phy_config &
 848                                                 FW_PHY_CFG_TX_CHAIN) >>
 849                                                 FW_PHY_CFG_TX_CHAIN_POS;
 850                         drv->fw.valid_rx_ant = (drv->fw.phy_config &
 851                                                 FW_PHY_CFG_RX_CHAIN) >>
 852                                                 FW_PHY_CFG_RX_CHAIN_POS;
 853                         break;
 854                  case IWL_UCODE_TLV_SECURE_SEC_RT:
 855                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_REGULAR,
 856                                             tlv_len);
 857                         drv->fw.mvm_fw = true;
 858                         break;
 859                 case IWL_UCODE_TLV_SECURE_SEC_INIT:
 860                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_INIT,
 861                                             tlv_len);
 862                         drv->fw.mvm_fw = true;
 863                         break;
 864                 case IWL_UCODE_TLV_SECURE_SEC_WOWLAN:
 865                         iwl_store_ucode_sec(pieces, tlv_data, IWL_UCODE_WOWLAN,
 866                                             tlv_len);
 867                         drv->fw.mvm_fw = true;
 868                         break;
 869                 case IWL_UCODE_TLV_NUM_OF_CPU:
 870                         if (tlv_len != sizeof(u32))
 871                                 goto invalid_tlv_len;
 872                         num_of_cpus =
 873                                 le32_to_cpup((__le32 *)tlv_data);
 874
 875                         if (num_of_cpus == 2) {
 876                                 drv->fw.img[IWL_UCODE_REGULAR].is_dual_cpus =
 877                                         true;
 878                                 drv->fw.img[IWL_UCODE_INIT].is_dual_cpus =
 879                                         true;
 880                                 drv->fw.img[IWL_UCODE_WOWLAN].is_dual_cpus =
 881                                         true;
 882                         } else if ((num_of_cpus > 2) || (num_of_cpus < 1)) {
 883                                 IWL_ERR(drv, "Driver support upto 2 CPUs\n");
 884                                 return -EINVAL;
 885                         }
 886                         break;
 887                 case IWL_UCODE_TLV_CSCHEME:
 888                         if (iwl_store_cscheme(&drv->fw, tlv_data, tlv_len))
 889                                 goto invalid_tlv_len;
 890                         break;
 891                 case IWL_UCODE_TLV_N_SCAN_CHANNELS:
 892                         if (tlv_len != sizeof(u32))
 893                                 goto invalid_tlv_len;
 894                         capa->n_scan_channels =
 895                                 le32_to_cpup((__le32 *)tlv_data);
 896                         break;
 897                 case IWL_UCODE_TLV_FW_VERSION: {
 898                         __le32 *ptr = (void *)tlv_data;
 899                         u32 major, minor;
 900                         u8 local_comp;
 901
 902                         if (tlv_len != sizeof(u32) * 3)
 903                                 goto invalid_tlv_len;
 904
 905                         major = le32_to_cpup(ptr++);
 906                         minor = le32_to_cpup(ptr++);
 907                         local_comp = le32_to_cpup(ptr);
 908
 909                         snprintf(drv->fw.fw_version,
 910                                  sizeof(drv->fw.fw_version), "%u.%u.%u",
 911                                  major, minor, local_comp);
 912                         break;
 913                         }
 914                 case IWL_UCODE_TLV_FW_DBG_DEST: {
 915                         struct iwl_fw_dbg_dest_tlv *dest = (void *)tlv_data;
 916
 917                         if (pieces->dbg_dest_tlv) {
 918                                 IWL_ERR(drv,
 919                                         "dbg destination ignored, already exists\n");
 920                                 break;
 921                         }
 922
 923                         pieces->dbg_dest_tlv = dest;
 924                         IWL_INFO(drv, "Found debug destination: %s\n",
 925                                  get_fw_dbg_mode_string(dest->monitor_mode));
 926
 927                         drv->fw.dbg_dest_reg_num =
 928                                 tlv_len - offsetof(struct iwl_fw_dbg_dest_tlv,
 929                                                    reg_ops);
 930                         drv->fw.dbg_dest_reg_num /=
 931                                 sizeof(drv->fw.dbg_dest_tlv->reg_ops[0]);
 932
 933                         break;
 934                         }
 935                 case IWL_UCODE_TLV_FW_DBG_CONF: {
 936                         struct iwl_fw_dbg_conf_tlv *conf = (void *)tlv_data;
 937
 938                         if (!pieces->dbg_dest_tlv) {
 939                                 IWL_ERR(drv,
 940                                         "Ignore dbg config %d - no destination configured\n",
 941                                         conf->id);
 942                                 break;
 943                         }
 944
 945                         if (conf->id >= ARRAY_SIZE(drv->fw.dbg_conf_tlv)) {
 946                                 IWL_ERR(drv,
 947                                         "Skip unknown configuration: %d\n",
 948                                         conf->id);
 949                                 break;
 950                         }
 951
 952                         if (pieces->dbg_conf_tlv[conf->id]) {
 953                                 IWL_ERR(drv,
 954                                         "Ignore duplicate dbg config %d\n",
 955                                         conf->id);
 956                                 break;
 957                         }
 958
 959                         if (conf->usniffer)
 960                                 usniffer_req = true;
 961
 962                         IWL_INFO(drv, "Found debug configuration: %d\n",
 963                                  conf->id);
 964
 965                         pieces->dbg_conf_tlv[conf->id] = conf;
 966                         pieces->dbg_conf_tlv_len[conf->id] = tlv_len;
 967                         break;
 968                         }
 969                 case IWL_UCODE_TLV_FW_DBG_TRIGGER: {
 970                         struct iwl_fw_dbg_trigger_tlv *trigger =
 971                                 (void *)tlv_data;
 972                         u32 trigger_id = le32_to_cpu(trigger->id);
 973
 974                         if (trigger_id >= ARRAY_SIZE(drv->fw.dbg_trigger_tlv)) {
 975                                 IWL_ERR(drv,
 976                                         "Skip unknown trigger: %u\n",
 977                                         trigger->id);
 978                                 break;
 979                         }
 980
 981                         if (pieces->dbg_trigger_tlv[trigger_id]) {
 982                                 IWL_ERR(drv,
 983                                         "Ignore duplicate dbg trigger %u\n",
 984                                         trigger->id);
 985                                 break;
 986                         }
 987
 988                         IWL_INFO(drv, "Found debug trigger: %u\n", trigger->id);
 989
 990                         pieces->dbg_trigger_tlv[trigger_id] = trigger;
 991                         pieces->dbg_trigger_tlv_len[trigger_id] = tlv_len;
 992                         break;
 993                         }
 994                 case IWL_UCODE_TLV_SEC_RT_USNIFFER:
 995                         *usniffer_images = true;
 996                         iwl_store_ucode_sec(pieces, tlv_data,
 997                                             IWL_UCODE_REGULAR_USNIFFER,
 998                                             tlv_len);
 999                         break;
1000                 case IWL_UCODE_TLV_PAGING:
1001                         if (tlv_len != sizeof(u32))
1002                                 goto invalid_tlv_len;
1003                         paging_mem_size = le32_to_cpup((__le32 *)tlv_data);
1004
1005                         IWL_DEBUG_FW(drv,
1006                                      "Paging: paging enabled (size = %u bytes)\n",
1007                                      paging_mem_size);
1008
1009                         if (paging_mem_size > MAX_PAGING_IMAGE_SIZE) {
1010                                 IWL_ERR(drv,
1011                                         "Paging: driver supports up to %lu bytes for paging image\n",
1012                                         MAX_PAGING_IMAGE_SIZE);
1013                                 return -EINVAL;
1014                         }
1015
1016                         if (paging_mem_size & (FW_PAGING_SIZE - 1)) {
1017                                 IWL_ERR(drv,
1018                                         "Paging: image isn't multiple %lu\n",
1019                                         FW_PAGING_SIZE);
1020                                 return -EINVAL;
1021                         }
1022
1023                         drv->fw.img[IWL_UCODE_REGULAR].paging_mem_size =
1024                                 paging_mem_size;
1025                         usniffer_img = IWL_UCODE_REGULAR_USNIFFER;
1026                         drv->fw.img[usniffer_img].paging_mem_size =
1027                                 paging_mem_size;
1028                         break;
1029                 case IWL_UCODE_TLV_SDIO_ADMA_ADDR:
1030                         if (tlv_len != sizeof(u32))
1031                                 goto invalid_tlv_len;
1032                         drv->fw.sdio_adma_addr =
1033                                 le32_to_cpup((__le32 *)tlv_data);
1034                         break;
1035                 case IWL_UCODE_TLV_FW_GSCAN_CAPA:
1036                         /*
1037                          * Don't return an error in case of a shorter tlv_len
1038                          * to enable loading of FW that has an old format
1039                          * of GSCAN capabilities TLV.
1040                          */
1041                         if (tlv_len < sizeof(struct iwl_fw_gscan_capabilities))
1042                                 break;
1043
1044                         iwl_store_gscan_capa(&drv->fw, tlv_data, tlv_len);
1045                         gscan_capa = true;
1046                         break;
1047                 case IWL_UCODE_TLV_FW_MEM_SEG: {
1048                         struct iwl_fw_dbg_mem_seg_tlv *dbg_mem =
1049                                 (void *)tlv_data;
1050                         u32 type;
1051
1052                         if (tlv_len != (sizeof(*dbg_mem)))
1053                                 goto invalid_tlv_len;
1054
1055                         type = le32_to_cpu(dbg_mem->data_type);
1056                         drv->fw.dbg_dynamic_mem = true;
1057
1058                         if (type >= ARRAY_SIZE(drv->fw.dbg_mem_tlv)) {
1059                                 IWL_ERR(drv,
1060                                         "Skip unknown dbg mem segment: %u\n",
1061                                         dbg_mem->data_type);
1062                                 break;
1063                         }
1064
1065                         if (pieces->dbg_mem_tlv[type]) {
1066                                 IWL_ERR(drv,
1067                                         "Ignore duplicate mem segment: %u\n",
1068                                         dbg_mem->data_type);
1069                                 break;
1070                         }
1071
1072                         IWL_DEBUG_INFO(drv, "Found debug memory segment: %u\n",
1073                                        dbg_mem->data_type);
1074
1075                         pieces->dbg_mem_tlv[type] = dbg_mem;
1076                         break;
1077                         }
1078                 default:
1079                         IWL_DEBUG_INFO(drv, "unknown TLV: %d\n", tlv_type);
1080                         break;
1081                 }
1082         }
1083
1084         if (!fw_has_capa(capa, IWL_UCODE_TLV_CAPA_USNIFFER_UNIFIED) &&
1085             usniffer_req && !*usniffer_images) {
1086                 IWL_ERR(drv,
1087                         "user selected to work with usniffer but usniffer image isn't available in ucode package\n");
1088                 return -EINVAL;
1089         }
1090
1091         if (len) {
1092                 IWL_ERR(drv, "invalid TLV after parsing: %zd\n", len);
1093                 iwl_print_hex_dump(drv, IWL_DL_FW, (u8 *)data, len);
1094                 return -EINVAL;
1095         }
1096
1097         /*
1098          * If ucode advertises that it supports GSCAN but GSCAN
1099          * capabilities TLV is not present, or if it has an old format,
1100          * warn and continue without GSCAN.
1101          */
1102         if (fw_has_capa(capa, IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT) &&
1103             !gscan_capa) {
1104                 IWL_DEBUG_INFO(drv,
1105                                "GSCAN is supported but capabilities TLV is unavailable\n");
1106                 __clear_bit((__force long)IWL_UCODE_TLV_CAPA_GSCAN_SUPPORT,
1107                             capa->_capa);
1108         }
1109
1110         return 0;
1111
1112  invalid_tlv_len:
1113         IWL_ERR(drv, "TLV %d has invalid size: %u\n", tlv_type, tlv_len);
1114  tlv_error:
1115         iwl_print_hex_dump(drv, IWL_DL_FW, tlv_data, tlv_len);
1116
1117         return -EINVAL;
1118 }
1119
1120 static int iwl_alloc_ucode(struct iwl_drv *drv,
1121                            struct iwl_firmware_pieces *pieces,
1122                            enum iwl_ucode_type type)
1123 {
1124         int i;
1125         for (i = 0;
1126              i < IWL_UCODE_SECTION_MAX && get_sec_size(pieces, type, i);
1127              i++)
1128                 if (iwl_alloc_fw_desc(drv, &(drv->fw.img[type].sec[i]),
1129                                       get_sec(pieces, type, i)))
1130                         return -ENOMEM;
1131         return 0;
1132 }
1133
1134 static int validate_sec_sizes(struct iwl_drv *drv,
1135                               struct iwl_firmware_pieces *pieces,
1136                               const struct iwl_cfg *cfg)
1137 {
1138         IWL_DEBUG_INFO(drv, "f/w package hdr runtime inst size = %Zd\n",
1139                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1140                              IWL_UCODE_SECTION_INST));
1141         IWL_DEBUG_INFO(drv, "f/w package hdr runtime data size = %Zd\n",
1142                 get_sec_size(pieces, IWL_UCODE_REGULAR,
1143                              IWL_UCODE_SECTION_DATA));
1144         IWL_DEBUG_INFO(drv, "f/w package hdr init inst size = %Zd\n",
1145                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST));
1146         IWL_DEBUG_INFO(drv, "f/w package hdr init data size = %Zd\n",
1147                 get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA));
1148
1149         /* Verify that uCode images will fit in card's SRAM. */
1150         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_INST) >
1151             cfg->max_inst_size) {
1152                 IWL_ERR(drv, "uCode instr len %Zd too large to fit in\n",
1153                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1154                                      IWL_UCODE_SECTION_INST));
1155                 return -1;
1156         }
1157
1158         if (get_sec_size(pieces, IWL_UCODE_REGULAR, IWL_UCODE_SECTION_DATA) >
1159             cfg->max_data_size) {
1160                 IWL_ERR(drv, "uCode data len %Zd too large to fit in\n",
1161                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1162                                      IWL_UCODE_SECTION_DATA));
1163                 return -1;
1164         }
1165
1166         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_INST) >
1167              cfg->max_inst_size) {
1168                 IWL_ERR(drv, "uCode init instr len %Zd too large to fit in\n",
1169                         get_sec_size(pieces, IWL_UCODE_INIT,
1170                                      IWL_UCODE_SECTION_INST));
1171                 return -1;
1172         }
1173
1174         if (get_sec_size(pieces, IWL_UCODE_INIT, IWL_UCODE_SECTION_DATA) >
1175             cfg->max_data_size) {
1176                 IWL_ERR(drv, "uCode init data len %Zd too large to fit in\n",
1177                         get_sec_size(pieces, IWL_UCODE_REGULAR,
1178                                      IWL_UCODE_SECTION_DATA));
1179                 return -1;
1180         }
1181         return 0;
1182 }
1183
1184 static struct iwl_op_mode *
1185 _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op)
1186 {
1187         const struct iwl_op_mode_ops *ops = op->ops;
1188         struct dentry *dbgfs_dir = NULL;
1189         struct iwl_op_mode *op_mode = NULL;
1190
1191 #ifdef CONFIG_IWLWIFI_DEBUGFS
1192         drv->dbgfs_op_mode = debugfs_create_dir(op->name,
1193                                                 drv->dbgfs_drv);
1194         if (!drv->dbgfs_op_mode) {
1195                 IWL_ERR(drv,
1196                         "failed to create opmode debugfs directory\n");
1197                 return op_mode;
1198         }
1199         dbgfs_dir = drv->dbgfs_op_mode;
1200 #endif
1201
1202         op_mode = ops->start(drv->trans, drv->cfg, &drv->fw, dbgfs_dir);
1203
1204 #ifdef CONFIG_IWLWIFI_DEBUGFS
1205         if (!op_mode) {
1206                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1207                 drv->dbgfs_op_mode = NULL;
1208         }
1209 #endif
1210
1211         return op_mode;
1212 }
1213
1214 static void _iwl_op_mode_stop(struct iwl_drv *drv)
1215 {
1216         /* op_mode can be NULL if its start failed */
1217         if (drv->op_mode) {
1218                 iwl_op_mode_stop(drv->op_mode);
1219                 drv->op_mode = NULL;
1220
1221 #ifdef CONFIG_IWLWIFI_DEBUGFS
1222                 debugfs_remove_recursive(drv->dbgfs_op_mode);
1223                 drv->dbgfs_op_mode = NULL;
1224 #endif
1225         }
1226 }
1227
1228 /**
1229  * iwl_req_fw_callback - callback when firmware was loaded
1230  *
1231  * If loaded successfully, copies the firmware into buffers
1232  * for the card to fetch (via DMA).
1233  */
1234 static void iwl_req_fw_callback(const struct firmware *ucode_raw, void *context)
1235 {
1236         struct iwl_drv *drv = context;
1237         struct iwl_fw *fw = &drv->fw;
1238         struct iwl_ucode_header *ucode;
1239         struct iwlwifi_opmode_table *op;
1240         int err;
1241         struct iwl_firmware_pieces *pieces;
1242         const unsigned int api_max = drv->cfg->ucode_api_max;
1243         const unsigned int api_min = drv->cfg->ucode_api_min;
1244         size_t trigger_tlv_sz[FW_DBG_TRIGGER_MAX];
1245         u32 api_ver;
1246         int i;
1247         bool load_module = false;
1248         bool usniffer_images = false;
1249
1250         fw->ucode_capa.max_probe_length = IWL_DEFAULT_MAX_PROBE_LENGTH;
1251         fw->ucode_capa.standard_phy_calibration_size =
1252                         IWL_DEFAULT_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1253         fw->ucode_capa.n_scan_channels = IWL_DEFAULT_SCAN_CHANNELS;
1254
1255         pieces = kzalloc(sizeof(*pieces), GFP_KERNEL);
1256         if (!pieces)
1257                 return;
1258
1259         if (!ucode_raw)
1260                 goto try_again;
1261
1262         IWL_DEBUG_INFO(drv, "Loaded firmware file '%s' (%zd bytes).\n",
1263                        drv->firmware_name, ucode_raw->size);
1264
1265         /* Make sure that we got at least the API version number */
1266         if (ucode_raw->size < 4) {
1267                 IWL_ERR(drv, "File size way too small!\n");
1268                 goto try_again;
1269         }
1270
1271         /* Data from ucode file:  header followed by uCode images */
1272         ucode = (struct iwl_ucode_header *)ucode_raw->data;
1273
1274         if (ucode->ver)
1275                 err = iwl_parse_v1_v2_firmware(drv, ucode_raw, pieces);
1276         else
1277                 err = iwl_parse_tlv_firmware(drv, ucode_raw, pieces,
1278                                              &fw->ucode_capa, &usniffer_images);
1279
1280         if (err)
1281                 goto try_again;
1282
1283         if (fw_has_api(&drv->fw.ucode_capa, IWL_UCODE_TLV_API_NEW_VERSION))
1284                 api_ver = drv->fw.ucode_ver;
1285         else
1286                 api_ver = IWL_UCODE_API(drv->fw.ucode_ver);
1287
1288         /*
1289          * api_ver should match the api version forming part of the
1290          * firmware filename ... but we don't check for that and only rely
1291          * on the API version read from firmware header from here on forward
1292          */
1293         /* no api version check required for experimental uCode */
1294         if (drv->fw_index != UCODE_EXPERIMENTAL_INDEX) {
1295                 if (api_ver < api_min || api_ver > api_max) {
1296                         IWL_ERR(drv,
1297                                 "Driver unable to support your firmware API. "
1298                                 "Driver supports v%u, firmware is v%u.\n",
1299                                 api_max, api_ver);
1300                         goto try_again;
1301                 }
1302         }
1303
1304         /*
1305          * In mvm uCode there is no difference between data and instructions
1306          * sections.
1307          */
1308         if (!fw->mvm_fw && validate_sec_sizes(drv, pieces, drv->cfg))
1309                 goto try_again;
1310
1311         /* Allocate ucode buffers for card's bus-master loading ... */
1312
1313         /* Runtime instructions and 2 copies of data:
1314          * 1) unmodified from disk
1315          * 2) backup cache for save/restore during power-downs */
1316         for (i = 0; i < IWL_UCODE_TYPE_MAX; i++)
1317                 if (iwl_alloc_ucode(drv, pieces, i))
1318                         goto out_free_fw;
1319
1320         if (pieces->dbg_dest_tlv) {
1321                 drv->fw.dbg_dest_tlv =
1322                         kmemdup(pieces->dbg_dest_tlv,
1323                                 sizeof(*pieces->dbg_dest_tlv) +
1324                                 sizeof(pieces->dbg_dest_tlv->reg_ops[0]) *
1325                                 drv->fw.dbg_dest_reg_num, GFP_KERNEL);
1326
1327                 if (!drv->fw.dbg_dest_tlv)
1328                         goto out_free_fw;
1329         }
1330
1331         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_conf_tlv); i++) {
1332                 if (pieces->dbg_conf_tlv[i]) {
1333                         drv->fw.dbg_conf_tlv_len[i] =
1334                                 pieces->dbg_conf_tlv_len[i];
1335                         drv->fw.dbg_conf_tlv[i] =
1336                                 kmemdup(pieces->dbg_conf_tlv[i],
1337                                         drv->fw.dbg_conf_tlv_len[i],
1338                                         GFP_KERNEL);
1339                         if (!drv->fw.dbg_conf_tlv[i])
1340                                 goto out_free_fw;
1341                 }
1342         }
1343
1344         memset(&trigger_tlv_sz, 0xff, sizeof(trigger_tlv_sz));
1345
1346         trigger_tlv_sz[FW_DBG_TRIGGER_MISSED_BEACONS] =
1347                 sizeof(struct iwl_fw_dbg_trigger_missed_bcon);
1348         trigger_tlv_sz[FW_DBG_TRIGGER_CHANNEL_SWITCH] = 0;
1349         trigger_tlv_sz[FW_DBG_TRIGGER_FW_NOTIF] =
1350                 sizeof(struct iwl_fw_dbg_trigger_cmd);
1351         trigger_tlv_sz[FW_DBG_TRIGGER_MLME] =
1352                 sizeof(struct iwl_fw_dbg_trigger_mlme);
1353         trigger_tlv_sz[FW_DBG_TRIGGER_STATS] =
1354                 sizeof(struct iwl_fw_dbg_trigger_stats);
1355         trigger_tlv_sz[FW_DBG_TRIGGER_RSSI] =
1356                 sizeof(struct iwl_fw_dbg_trigger_low_rssi);
1357         trigger_tlv_sz[FW_DBG_TRIGGER_TXQ_TIMERS] =
1358                 sizeof(struct iwl_fw_dbg_trigger_txq_timer);
1359         trigger_tlv_sz[FW_DBG_TRIGGER_TIME_EVENT] =
1360                 sizeof(struct iwl_fw_dbg_trigger_time_event);
1361         trigger_tlv_sz[FW_DBG_TRIGGER_BA] =
1362                 sizeof(struct iwl_fw_dbg_trigger_ba);
1363         trigger_tlv_sz[FW_DBG_TRIGGER_TDLS] =
1364                 sizeof(struct iwl_fw_dbg_trigger_tdls);
1365
1366         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_trigger_tlv); i++) {
1367                 if (pieces->dbg_trigger_tlv[i]) {
1368                         /*
1369                          * If the trigger isn't long enough, WARN and exit.
1370                          * Someone is trying to debug something and he won't
1371                          * be able to catch the bug he is trying to chase.
1372                          * We'd better be noisy to be sure he knows what's
1373                          * going on.
1374                          */
1375                         if (WARN_ON(pieces->dbg_trigger_tlv_len[i] <
1376                                     (trigger_tlv_sz[i] +
1377                                      sizeof(struct iwl_fw_dbg_trigger_tlv))))
1378                                 goto out_free_fw;
1379                         drv->fw.dbg_trigger_tlv_len[i] =
1380                                 pieces->dbg_trigger_tlv_len[i];
1381                         drv->fw.dbg_trigger_tlv[i] =
1382                                 kmemdup(pieces->dbg_trigger_tlv[i],
1383                                         drv->fw.dbg_trigger_tlv_len[i],
1384                                         GFP_KERNEL);
1385                         if (!drv->fw.dbg_trigger_tlv[i])
1386                                 goto out_free_fw;
1387                 }
1388         }
1389
1390         for (i = 0; i < ARRAY_SIZE(drv->fw.dbg_mem_tlv); i++) {
1391                 if (pieces->dbg_mem_tlv[i]) {
1392                         drv->fw.dbg_mem_tlv[i] =
1393                                 kmemdup(pieces->dbg_mem_tlv[i],
1394                                         sizeof(*drv->fw.dbg_mem_tlv[i]),
1395                                         GFP_KERNEL);
1396                         if (!drv->fw.dbg_mem_tlv[i])
1397                                 goto out_free_fw;
1398                 }
1399         }
1400
1401         /* Now that we can no longer fail, copy information */
1402
1403         /*
1404          * The (size - 16) / 12 formula is based on the information recorded
1405          * for each event, which is of mode 1 (including timestamp) for all
1406          * new microcodes that include this information.
1407          */
1408         fw->init_evtlog_ptr = pieces->init_evtlog_ptr;
1409         if (pieces->init_evtlog_size)
1410                 fw->init_evtlog_size = (pieces->init_evtlog_size - 16)/12;
1411         else
1412                 fw->init_evtlog_size =
1413                         drv->cfg->base_params->max_event_log_size;
1414         fw->init_errlog_ptr = pieces->init_errlog_ptr;
1415         fw->inst_evtlog_ptr = pieces->inst_evtlog_ptr;
1416         if (pieces->inst_evtlog_size)
1417                 fw->inst_evtlog_size = (pieces->inst_evtlog_size - 16)/12;
1418         else
1419                 fw->inst_evtlog_size =
1420                         drv->cfg->base_params->max_event_log_size;
1421         fw->inst_errlog_ptr = pieces->inst_errlog_ptr;
1422
1423         /*
1424          * figure out the offset of chain noise reset and gain commands
1425          * base on the size of standard phy calibration commands table size
1426          */
1427         if (fw->ucode_capa.standard_phy_calibration_size >
1428             IWL_MAX_PHY_CALIBRATE_TBL_SIZE)
1429                 fw->ucode_capa.standard_phy_calibration_size =
1430                         IWL_MAX_STANDARD_PHY_CALIBRATE_TBL_SIZE;
1431
1432         /* We have our copies now, allow OS release its copies */
1433         release_firmware(ucode_raw);
1434
1435         mutex_lock(&iwlwifi_opmode_table_mtx);
1436         if (fw->mvm_fw)
1437                 op = &iwlwifi_opmode_table[MVM_OP_MODE];
1438         else
1439                 op = &iwlwifi_opmode_table[DVM_OP_MODE];
1440
1441         IWL_INFO(drv, "loaded firmware version %s op_mode %s\n",
1442                  drv->fw.fw_version, op->name);
1443
1444         /* add this device to the list of devices using this op_mode */
1445         list_add_tail(&drv->list, &op->drv);
1446
1447         if (op->ops) {
1448                 drv->op_mode = _iwl_op_mode_start(drv, op);
1449
1450                 if (!drv->op_mode) {
1451                         mutex_unlock(&iwlwifi_opmode_table_mtx);
1452                         goto out_unbind;
1453                 }
1454         } else {
1455                 load_module = true;
1456         }
1457         mutex_unlock(&iwlwifi_opmode_table_mtx);
1458
1459         /*
1460          * Complete the firmware request last so that
1461          * a driver unbind (stop) doesn't run while we
1462          * are doing the start() above.
1463          */
1464         complete(&drv->request_firmware_complete);
1465
1466         /*
1467          * Load the module last so we don't block anything
1468          * else from proceeding if the module fails to load
1469          * or hangs loading.
1470          */
1471         if (load_module) {
1472                 err = request_module("%s", op->name);
1473 #ifdef CONFIG_IWLWIFI_OPMODE_MODULAR
1474                 if (err)
1475                         IWL_ERR(drv,
1476                                 "failed to load module %s (error %d), is dynamic loading enabled?\n",
1477                                 op->name, err);
1478 #endif
1479         }
1480         kfree(pieces);
1481         return;
1482
1483  try_again:
1484         /* try next, if any */
1485         release_firmware(ucode_raw);
1486         if (iwl_request_firmware(drv, false))
1487                 goto out_unbind;
1488         kfree(pieces);
1489         return;
1490
1491  out_free_fw:
1492         IWL_ERR(drv, "failed to allocate pci memory\n");
1493         iwl_dealloc_ucode(drv);
1494         release_firmware(ucode_raw);
1495  out_unbind:
1496         kfree(pieces);
1497         complete(&drv->request_firmware_complete);
1498         device_release_driver(drv->trans->dev);
1499 }
1500
1501 struct iwl_drv *iwl_drv_start(struct iwl_trans *trans,
1502                               const struct iwl_cfg *cfg)
1503 {
1504         struct iwl_drv *drv;
1505         int ret;
1506
1507         drv = kzalloc(sizeof(*drv), GFP_KERNEL);
1508         if (!drv) {
1509                 ret = -ENOMEM;
1510                 goto err;
1511         }
1512
1513         drv->trans = trans;
1514         drv->dev = trans->dev;
1515         drv->cfg = cfg;
1516
1517         init_completion(&drv->request_firmware_complete);
1518         INIT_LIST_HEAD(&drv->list);
1519
1520 #ifdef CONFIG_IWLWIFI_DEBUGFS
1521         /* Create the device debugfs entries. */
1522         drv->dbgfs_drv = debugfs_create_dir(dev_name(trans->dev),
1523                                             iwl_dbgfs_root);
1524
1525         if (!drv->dbgfs_drv) {
1526                 IWL_ERR(drv, "failed to create debugfs directory\n");
1527                 ret = -ENOMEM;
1528                 goto err_free_drv;
1529         }
1530
1531         /* Create transport layer debugfs dir */
1532         drv->trans->dbgfs_dir = debugfs_create_dir("trans", drv->dbgfs_drv);
1533
1534         if (!drv->trans->dbgfs_dir) {
1535                 IWL_ERR(drv, "failed to create transport debugfs directory\n");
1536                 ret = -ENOMEM;
1537                 goto err_free_dbgfs;
1538         }
1539 #endif
1540
1541         ret = iwl_request_firmware(drv, true);
1542         if (ret) {
1543                 IWL_ERR(trans, "Couldn't request the fw\n");
1544                 goto err_fw;
1545         }
1546
1547         return drv;
1548
1549 err_fw:
1550 #ifdef CONFIG_IWLWIFI_DEBUGFS
1551 err_free_dbgfs:
1552         debugfs_remove_recursive(drv->dbgfs_drv);
1553 err_free_drv:
1554 #endif
1555         kfree(drv);
1556 err:
1557         return ERR_PTR(ret);
1558 }
1559
1560 void iwl_drv_stop(struct iwl_drv *drv)
1561 {
1562         wait_for_completion(&drv->request_firmware_complete);
1563
1564         _iwl_op_mode_stop(drv);
1565
1566         iwl_dealloc_ucode(drv);
1567
1568         mutex_lock(&iwlwifi_opmode_table_mtx);
1569         /*
1570          * List is empty (this item wasn't added)
1571          * when firmware loading failed -- in that
1572          * case we can't remove it from any list.
1573          */
1574         if (!list_empty(&drv->list))
1575                 list_del(&drv->list);
1576         mutex_unlock(&iwlwifi_opmode_table_mtx);
1577
1578 #ifdef CONFIG_IWLWIFI_DEBUGFS
1579         debugfs_remove_recursive(drv->dbgfs_drv);
1580 #endif
1581
1582         kfree(drv);
1583 }
1584
1585
1586 /* shared module parameters */
1587 struct iwl_mod_params iwlwifi_mod_params = {
1588         .restart_fw = true,
1589         .bt_coex_active = true,
1590         .power_level = IWL_POWER_INDEX_1,
1591         .d0i3_disable = true,
1592         .d0i3_entry_delay = 1000,
1593         .uapsd_disable = IWL_DISABLE_UAPSD_BSS | IWL_DISABLE_UAPSD_P2P_CLIENT,
1594         /* the rest are 0 by default */
1595 };
1596 IWL_EXPORT_SYMBOL(iwlwifi_mod_params);
1597
1598 int iwl_opmode_register(const char *name, const struct iwl_op_mode_ops *ops)
1599 {
1600         int i;
1601         struct iwl_drv *drv;
1602         struct iwlwifi_opmode_table *op;
1603
1604         mutex_lock(&iwlwifi_opmode_table_mtx);
1605         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1606                 op = &iwlwifi_opmode_table[i];
1607                 if (strcmp(op->name, name))
1608                         continue;
1609                 op->ops = ops;
1610                 /* TODO: need to handle exceptional case */
1611                 list_for_each_entry(drv, &op->drv, list)
1612                         drv->op_mode = _iwl_op_mode_start(drv, op);
1613
1614                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1615                 return 0;
1616         }
1617         mutex_unlock(&iwlwifi_opmode_table_mtx);
1618         return -EIO;
1619 }
1620 IWL_EXPORT_SYMBOL(iwl_opmode_register);
1621
1622 void iwl_opmode_deregister(const char *name)
1623 {
1624         int i;
1625         struct iwl_drv *drv;
1626
1627         mutex_lock(&iwlwifi_opmode_table_mtx);
1628         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++) {
1629                 if (strcmp(iwlwifi_opmode_table[i].name, name))
1630                         continue;
1631                 iwlwifi_opmode_table[i].ops = NULL;
1632
1633                 /* call the stop routine for all devices */
1634                 list_for_each_entry(drv, &iwlwifi_opmode_table[i].drv, list)
1635                         _iwl_op_mode_stop(drv);
1636
1637                 mutex_unlock(&iwlwifi_opmode_table_mtx);
1638                 return;
1639         }
1640         mutex_unlock(&iwlwifi_opmode_table_mtx);
1641 }
1642 IWL_EXPORT_SYMBOL(iwl_opmode_deregister);
1643
1644 static int __init iwl_drv_init(void)
1645 {
1646         int i;
1647
1648         mutex_init(&iwlwifi_opmode_table_mtx);
1649
1650         for (i = 0; i < ARRAY_SIZE(iwlwifi_opmode_table); i++)
1651                 INIT_LIST_HEAD(&iwlwifi_opmode_table[i].drv);
1652
1653         pr_info(DRV_DESCRIPTION "\n");
1654         pr_info(DRV_COPYRIGHT "\n");
1655
1656 #ifdef CONFIG_IWLWIFI_DEBUGFS
1657         /* Create the root of iwlwifi debugfs subsystem. */
1658         iwl_dbgfs_root = debugfs_create_dir(DRV_NAME, NULL);
1659
1660         if (!iwl_dbgfs_root)
1661                 return -EFAULT;
1662 #endif
1663
1664         return iwl_pci_register_driver();
1665 }
1666 module_init(iwl_drv_init);
1667
1668 static void __exit iwl_drv_exit(void)
1669 {
1670         iwl_pci_unregister_driver();
1671
1672 #ifdef CONFIG_IWLWIFI_DEBUGFS
1673         debugfs_remove_recursive(iwl_dbgfs_root);
1674 #endif
1675 }
1676 module_exit(iwl_drv_exit);
1677
1678 #ifdef CONFIG_IWLWIFI_DEBUG
1679 module_param_named(debug, iwlwifi_mod_params.debug_level, uint,
1680                    S_IRUGO | S_IWUSR);
1681 MODULE_PARM_DESC(debug, "debug output mask");
1682 #endif
1683
1684 module_param_named(swcrypto, iwlwifi_mod_params.sw_crypto, int, S_IRUGO);
1685 MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])");
1686 module_param_named(11n_disable, iwlwifi_mod_params.disable_11n, uint, S_IRUGO);
1687 MODULE_PARM_DESC(11n_disable,
1688         "disable 11n functionality, bitmap: 1: full, 2: disable agg TX, 4: disable agg RX, 8 enable agg TX");
1689 module_param_named(amsdu_size, iwlwifi_mod_params.amsdu_size,
1690                    int, S_IRUGO);
1691 MODULE_PARM_DESC(amsdu_size, "amsdu size 0:4K 1:8K 2:12K (default 0)");
1692 module_param_named(fw_restart, iwlwifi_mod_params.restart_fw, bool, S_IRUGO);
1693 MODULE_PARM_DESC(fw_restart, "restart firmware in case of error (default true)");
1694
1695 module_param_named(antenna_coupling, iwlwifi_mod_params.ant_coupling,
1696                    int, S_IRUGO);
1697 MODULE_PARM_DESC(antenna_coupling,
1698                  "specify antenna coupling in dB (default: 0 dB)");
1699
1700 module_param_named(nvm_file, iwlwifi_mod_params.nvm_file, charp, S_IRUGO);
1701 MODULE_PARM_DESC(nvm_file, "NVM file name");
1702
1703 module_param_named(d0i3_disable, iwlwifi_mod_params.d0i3_disable,
1704                    bool, S_IRUGO);
1705 MODULE_PARM_DESC(d0i3_disable, "disable d0i3 functionality (default: Y)");
1706
1707 module_param_named(lar_disable, iwlwifi_mod_params.lar_disable,
1708                    bool, S_IRUGO);
1709 MODULE_PARM_DESC(lar_disable, "disable LAR functionality (default: N)");
1710
1711 module_param_named(uapsd_disable, iwlwifi_mod_params.uapsd_disable,
1712                    uint, S_IRUGO | S_IWUSR);
1713 MODULE_PARM_DESC(uapsd_disable,
1714                  "disable U-APSD functionality bitmap 1: BSS 2: P2P Client (default: 3)");
1715
1716 /*
1717  * set bt_coex_active to true, uCode will do kill/defer
1718  * every time the priority line is asserted (BT is sending signals on the
1719  * priority line in the PCIx).
1720  * set bt_coex_active to false, uCode will ignore the BT activity and
1721  * perform the normal operation
1722  *
1723  * User might experience transmit issue on some platform due to WiFi/BT
1724  * co-exist problem. The possible behaviors are:
1725  *   Able to scan and finding all the available AP
1726  *   Not able to associate with any AP
1727  * On those platforms, WiFi communication can be restored by set
1728  * "bt_coex_active" module parameter to "false"
1729  *
1730  * default: bt_coex_active = true (BT_COEX_ENABLE)
1731  */
1732 module_param_named(bt_coex_active, iwlwifi_mod_params.bt_coex_active,
1733                 bool, S_IRUGO);
1734 MODULE_PARM_DESC(bt_coex_active, "enable wifi/bt co-exist (default: enable)");
1735
1736 module_param_named(led_mode, iwlwifi_mod_params.led_mode, int, S_IRUGO);
1737 MODULE_PARM_DESC(led_mode, "0=system default, "
1738                 "1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0)");
1739
1740 module_param_named(power_save, iwlwifi_mod_params.power_save,
1741                 bool, S_IRUGO);
1742 MODULE_PARM_DESC(power_save,
1743                  "enable WiFi power management (default: disable)");
1744
1745 module_param_named(power_level, iwlwifi_mod_params.power_level,
1746                 int, S_IRUGO);
1747 MODULE_PARM_DESC(power_level,
1748                  "default power save level (range from 1 - 5, default: 1)");
1749
1750 module_param_named(fw_monitor, iwlwifi_mod_params.fw_monitor, bool, S_IRUGO);
1751 MODULE_PARM_DESC(fw_monitor,
1752                  "firmware monitor - to debug FW (default: false - needs lots of memory)");
1753
1754 module_param_named(d0i3_timeout, iwlwifi_mod_params.d0i3_entry_delay,
1755                    uint, S_IRUGO);
1756 MODULE_PARM_DESC(d0i3_timeout, "Timeout to D0i3 entry when idle (ms)");
1757
1758 module_param_named(disable_11ac, iwlwifi_mod_params.disable_11ac, bool,
1759                    S_IRUGO);
1760 MODULE_PARM_DESC(disable_11ac, "Disable VHT capabilities");